package com.kuaiyiwang.springcloud.controller;

import com.kuaiyiwang.springcloud.entities.CommonResult;
import com.kuaiyiwang.springcloud.entities.Payment;
import com.kuaiyiwang.springcloud.lb.LoadBalance;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

import javax.annotation.Resource;
import java.net.URI;
import java.util.List;
import java.util.logging.Logger;

@RestController
public class OrderController {

   // private final Logger logger = LoggerFactory.getLogger(OrderController.class);

    //public static final String PAYMENT_URL="http://localhost:8001";//单机模式
    public static final String PAYMENT_URL="http://CLOUD-PAYMENT-SERVICE";

    @Autowired
    private RestTemplate restTemplate;

    @Resource
    private LoadBalance loadBalance;

    @Autowired
    private DiscoveryClient discoveryClient;

    @GetMapping("/consumer/payment/create")
    public CommonResult<Payment> create(Payment payment){
        return  restTemplate.postForObject(PAYMENT_URL+"/payment/create",payment,CommonResult.class);
    }

    @GetMapping("/consumer/payment/get/{id}")
    public CommonResult<Payment> getPayment(@PathVariable("id") Long id){
        return restTemplate.getForObject(PAYMENT_URL+"/payment/get/"+id,CommonResult.class);
    }

    @GetMapping("/consumer/payment/getForEntity/{id}")
    public CommonResult<Payment> getPayment2(@PathVariable("id") Long id){
        ResponseEntity<CommonResult> forEntity = restTemplate.getForEntity(PAYMENT_URL + "/payment/get/" + id, CommonResult.class);
        if(forEntity.getStatusCode().is2xxSuccessful()){
            System.out.println(forEntity.getStatusCodeValue());
            return forEntity.getBody();
        }else{
            return new CommonResult<>(444,"操作失败");
        }
    }

    @GetMapping("/consumer/payment/lb")
    public String getPaymentLB(){
        List<ServiceInstance> instances = discoveryClient.getInstances("CLOUD-PAYMENT-SERVICE");
        if(instances == null || instances.size()<0){
            return null;
        }
        ServiceInstance instances1 = loadBalance.instances(instances);
        URI uri = instances1.getUri();
        return restTemplate.getForObject(uri+"/payment/lb",String.class);
    }

    @GetMapping("/consumer/payment/zipkin")
    public String getPaymentZipkin(){
        String result = restTemplate.getForObject("http://localhost:8001"+"/payment/zipkin/",String.class);
        return result;
    }
}
